Tham khảo tài liệu 'success step english 1', ngoại ngữ, anh ngữ phổ thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Three Success Steps For Working With Graphs 1. Read the graph carefully. Read all around the graph including the title and the key. 2. Some questions may try to trick you by leaving out numbers. If all the numbers are not given it is a very good idea to fill in all the missing numbers on the graph. To do this you will need to know the value of each increment. 3. Sometimes instead of reading bars or lines you can compare differences by using a piece of your test booklet to measure from one point to another or from the end of one bar to the end of another. Line Graphs Projected Student Population . School District 12000-r 10000 - 8000-- -__fr---- _ _ I------------ 6000 4000 - -------9 2000 - . ---------1 ---------1 1 1998 1999-2000 2001 2002 Student Population - New Homes 3. In what year is the increase in student population projected to be less than the increase in number of new homes built a. 1998 b. 1999 c. 2000 d. 2001 e. 2002 Answer The answer is c. A look at the graph shows that during the year 2000 there was a sharper increase in the number of new homes built than in student population. The line slopes up steeper there for houses than it does for student population. Percent of increase is a different question and might yield a different answer. Check Ratios Proportions and Percents p. 109 on percents for details. Picture Graphs 4. How many MTAC members were there in 1990 a. 312r b. 35o c. 700 d. 1 750 e. 2 250 Answer It is important to read the key at the bottom of the graph. Each piano represents 500 members. -1 a piano represents 250 members. 1990 has 3-1 pianos. This represents 1 750 members. The answer is d. 88 CBEST MINI-COURSE Circle Graphs Save the Caves Income Here s a different kind of circle graph question. 6. Which of the following could include a representation of expenditures of 25 and 33 5. For which category was the income for the Save the Caves Foundation approximately ị a. Mailings b. Sales c. Thrift Shop d. Phone e. Other Answer Look
